Ive got a slight ratcheting noise coming from the rear diff, only noticeable in neutral at low speed rolling up to lights ect... sount is similar to that of an auto locker ratcheting but the thing is i have an air locker. Yanked the diff center out and seems flawless with no wear ect... all looks brand new. The long axle however looks very twisted after 60,000 kms of abuse im not suprised. Is it possible my axle could be the cause of my ratchety sound ?